Finding the Fourth Proportional to 1,324,950,939.54, 1,828,408,575.27 and 722,126,992.18
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Solution
The fourth proportional to 1,324,950,939.54, 1,828,408,575.27 and 722,126,992.18 is: 996,522,320.59
Step by Step Solution
- Step 1: Write the proportion equation
1,324,950,939.54 : 1,828,408,575.27 = 722,126,992.18 : x - Step 2: Convert to fraction form
1,324,950,939.54/1,828,408,575.27 = 722,126,992.18/x - Step 3: Cross multiply
1,324,950,939.54x = 1,828,408,575.27 × 722,126,992.18 - Step 4: Simplify right side
1,324,950,939.54x = 1,320,343,184,935,844,096 - Step 5: Solve for x
x = 1,320,343,184,935,844,096/1,324,950,939.54 - Step 6: Final answer
x = 996,522,320.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.